Defining view models for MVC / MVP

Question

Short question - how do you define your view models?

Here are some of the options:

1. Pass the actual model into the view.
2. Create a view model wi

Answer 1

Basically - it's all about separating responsibilities.

More you separate them - more verbose, complex but easier to understand it gets.

---

Model:

public class foo{
    string Name{get;set}
    Bar Bar {get;set;}
    string SomethingThatIsUneccessaryInViews {get;set;}
}

public class bar{
    string Name {get;set;}
}

public class fizz{
    string Name{get;set;}
}

Presenter (i admit - still haven't got idea of MVP completely):

public someSpecificViewPresenter{
    fizz fizz{get;set;}
    foo foo{get;set;}
    necessaryThingsForWhatever[] necessaryThingsForWhatever{get;set;}
    public void someLogicIfNeeded(){...}        
}

magic object2object mapping & flattening, viewmodel modelmetadata configuration goes here...

ViewModel (NB=>POCOS with container props only. No logic should go here.):

public class fooViewModel{
    string Name {get;set;}
    string BarName {get;set;}
}

public class fizzViewModel{
    string Name {get;set;}
}

public class someSpecificView{
    fooViewModel foo {get;set;}
    fizzViewModel fizz {get;set;}
    whateverViewModel whatever {get;set;}
}

and here goes "das happy ending"...

Our foo:

${Html.DisplayFor(x=>x.foo)}



Our fizz:

${Html.DisplayFor(x=>x.fizz)}


${Html.UberPaging(m.whatever.Paging)}

And yes, i use same model for GET/POST. See this for more why/ifs.

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But lately - I'm looking for other solutions. CQRS buzz catch my eye.